Magazine-feed for furnaces.



H. DEVLIN.

MAGAZINE FEED FOR FURNACES.

APPLICATION FILED FEB. 20. 1915.

1,163,978, Patented Dec. 14, 1915.

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H. DEVLIN.

MAGAZINE FEED FOR FURNACES.

APPLICATION FILED FEB. 20. 19H).

Patented. Dec. 14, 1915.

2 SHEETS-SHEET 2.

Wbtweoow HENRY DEVLIN, OF BAY CITY, MICHIGAN, ASSIGNOR TO THE OF BAYCITY, MICHIGAN, A CORPORATION OF M. GARLAND COMPANY, MICHIGAN.

MAGAZINE-FEED FOR FURNACES.

Specification of Letters Patent.

Patented Dec. ML, 1915.

Application filed February 20, 1915. Serial No. 9,513.

To all whom it may concern:

Be it known that I, HENRY DEVLIN, a citizen of the United States ofAmerica, residing at Bay City, in the county of Bay and State ofMichigan, have invented certain new and useful Improvements inMagazine-Feeds for Furnaces, of which the following is a specification,reference being had therein to the accompanying drawings.

' This invention relates to a magazine feed for furnaces, and moreparticularly to that type of hot air furnace that has a'simple feederfor the combustion chamber.

The primary object of my invention is to provide a novel hopper door orbucket which facilitates filling the magazine or fuel chute of thefurnace and obviates the necessity of repeatedly shoveling coal or otherfuel into the magazine or chute.

A further object of this invention is to provide a. hopper door orbucket that can be easily and quickly manipulated to deposit a quantityof fuel in a furnace magazine or chute, without any danger of smoke orfumes escaping from the furnace during such manipulation.

With the above and other objects in view the invention resides in thenovel construction, combination and arrangement of parts to behereinafter specifically described and then claimed.

Reference-will now ings, wherein Figure 1 is a vertical sectional viewof a hot air furnace provided with the hopper door or bucket; Fig. 2 isa front elevation of the same; Fig. -3 is a fragmentary plan of thefurnace; Fig. 4 is a horizontal sectional view of the furnace, and Fig.5 is a vertical sectional view of a modified form of magazine or coalchute.

In the drawings, 1 denotes an ash pit casing having a door 2 at thefront side thereof provided with the usual draft damper 3. The top ofthe casing is provided with tiltable grate bars 4 of a conventional formsuitably trunnioned in the casing whereby the same can be tilted by ashaker crank (not shown) placed upon the outer ends of said grate bars.Mounted upon the ash pit casing is a fire pot 5 and on this chamber is acombust on chamber 6 which has the front side thereof provided with adoorway 7 for an ordinary hinge door 8. The top of the doorway 7 isformed by the bottom wall be had to the draw- 9 of an inclined fuelchute or magazine 10, the lower end of which terminates in the verticalaxis of the combustion chamber 6 and the upper end of said fuel chute ormagazine terminates at an inclination above the hinged door 8. On thecombustion chamber 6 is a dome 11 in communication with a circular drum12 having an exhaust flue 13 adapted to communicate with a stack orchimney. Inclosing the structure just described is a suitable housing orshell 14 provided with the ordinary hot air fiues 15. Referring again tothe fuel chute or magazine 10, said magazine has the upper end thereofprovided with a hopper door or bucket 16 which has the pintle 17 thereoftrunnioned in brackets 18 carried by a frame 19 connecting the doorway 7and the magazine 10 and supported by the shell 14. One end of the pintle17 is shaped to accommodate th same shaker crank employed for tiltingthe grate bars 4. In a closed position, the hopper door or bucket issupported at an inclination resting against the upper end of the chuteor magazine 10, and to prevent accidental displacement of the hopperdoor or bucket, the hopper door or bucket has a keeper 19 adapted to beengaged by a pivoted latch 20, carried by the top of the frame 19. lVhenthe hopper door or bucket 16 is in a lowered position, said door orbucket rests against the hinged door 8 of the doorway 7 and is supportedin such position that it can be easily filled with coal or other fuel.

Before considering the modified form of construction, it is thought wellto refer to certain advantages that are gained by the use of a hopperdoor or bucket. In the first place, less attention is required as thechute or magazine can be completely filled with coal or other fuel andit is possible to use cheaper grades of coal and obtain a more evenregulation of heat. The very fact that the chute or magazine containscoal it is evident that the same can descend by gravity and thereforeconstitute a continuouscentral feeder for the fire pot 5-of the furnace.Thisis apparent by referring to Fig. 1 showing the location of fuel.Furthermore, the hopper door or bucket permits of large quantities offuel being easily delivered to the chute or magazine and during theoperation of filling the hopper door or bucket, it is practicallyimpossible for smoke same be open.

Reference will now be had to Fig. 5 showing the modification of theinvention, where-,

' way 7 or the frame 19.

in the fuel chute or magazine 22 is made as a separate casting andfitted in the fuel container and the shell of the furnace. Such acasting can be easily and quickly installed in connection with furnacesalready in use, or to facilitate manufacture can be made separate fromthe combustion chamber 6, door- In some instances the hopper door orbucket can be counterbalanced to facilitate manipulating the same and ineither position it will positively remain as positioned to eitherreceive fuel or to seal the upper end of the fuel chute or magazine.

While in the drawings there are illustrated the preferred embodiments ofmy invention, it is to be understood that the structural elements aresusceptible ,to such variations and modifications as fall within thescope of the appended claims.

said combustion chamber and the outer end thereof providing an opening,of greater cross sectional area than said chute at the front wall ofsaid furnace above said door, and a hopper pivoted at the lower edge ofthe open end of said chute and extending across said opening and facingthe same'and adapted when lowered to present a receptacle that can befilled with fuel independent of said chute, and when raised dischargethe fuel into said chute and close the outer end thereof.

2. In a hot air furnace having a combustion chamber and an ordinary doorto facilitate placing fuel in said chamber, a fuel chute extendingtherein and having an opening of greater area than said chute at thefront Wall of said furnace above said door and pivoted fuel carryingmeans at the outer end of said chute adapted to receive and hold 'fuelwhen in a lowered position against the door of said chamber and whenraised to discharge fuel into said chute and close the open end of thechute and-means for latching the same in closed position.

In testimony whereof I affix my signature in presence of two witnesses.I

HENRY DEVLIN.

itnesses:

HAROLD GATES. H. A. GARLAND.

